Bearing ring forging die

Abstract

The invention discloses a bearing ring forging die and relates to the field of forging, the bearing ring forging die comprises a bottom die mounted on a forging machine body, a forging hammer corresponding to the bottom die is arranged on the forging machine body, a base located below the bottom die is mounted on the forging machine body, a die cavity is formed in the bottom die, a circular groove is formed in the bottom of the die cavity, and a bearing ring is arranged in the circular groove. The inner side face of the circular groove is slidably connected with a groove expanding top seat, a vertical groove is formed in the groove expanding top seat, the inner side face of the vertical groove is slidably connected with a grooving top seat, and the mold cavity, the groove expanding top seat and the grooving top seat are concentrically arranged. According to the bearing ring forging die, through mutual cooperation of the bottom die, the groove expanding top base, the grooving top base and the synchronizing mechanism, the bearing ring can be rapidly formed in the die forging process, in the forming process, the upper stress and the lower stress of a blank are uniform, and therefore high-efficiency and high-quality preparation of the bearing ring can be effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to forging technology, in particular to a bearing ring forging die. BACKGROUND

[0002] The bearing is used to determine the relative motion position of the rotating shaft and other parts, and plays a supporting or guiding role. Its main function is to support the rotating shaft or other moving bodies, guide the rotation or movement, and bear the load transmitted by the shaft or the parts on the shaft. The bearing ring, as the outer ring of the bearing, is an important component structure to realize the normal function of the bearing.

[0003] In the preparation process of the bearing ring, the die forging method is usually used. The specific steps include placing the iron ingot heated to a certain temperature in the die, and forming by the forging equipment, so as to obtain the required bearing ring. However, in the actual preparation process, the iron ingot needs to go through multiple processes from the iron ingot to the formed ring: first, forging hammer forming, then opening a hole in the center, and finally expanding the hole to make it a complete ring. However, during the opening and expanding process, due to the high temperature, the plasticity of the metal is strong, in order to avoid uneven stress on the blank, which causes uneven metal flow, resulting in irregular hole diameter, generally the blank needs to be turned over frequently during the forging process. This process requires the semi-finished blank to be taken out of the die, and then continuously turned over and processed. However, without the shape restriction of the die, when the forging hammer applies impact force during the opening or expanding process, the internal metal of the blank may flow, which may change the shape of the blank, resulting in the need for repeated shape adjustment of the bearing ring after the initial forming, making the forging process of the bearing ring more complicated, and the functionality of the bearing ring forging die is insufficient and needs to be improved. SUMMARY

[0004] The purpose of the present application is to provide a bearing ring forging die to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a bearing ring forging die, comprising a bottom die mounted on a forging body, a forging hammer corresponding to the bottom die is arranged on the forging body, a base is mounted below the bottom die on the forging body, a die cavity is formed in the bottom die, a circular groove is formed in the bottom of the die cavity, an expansion groove top seat is slidably connected to the inner side of the circular groove, a vertical groove is formed in the interior of the expansion groove top seat, an opening groove top seat is slidably connected to the inner side of the vertical groove, the die cavity, the expansion groove top seat and the opening groove top seat are concentrically arranged, a semi-finished blank is placed in the die cavity, a die core is placed on the top of the semi-finished blank, the die core comprises an opening groove die core and an expansion groove die core; The base is provided with a synchronous mechanism corresponding to the expansion groove top base and the slotting top base, which is used to synchronize the movement between the slotting mold core and the slotting top base and the movement between the expansion groove mold core and the expansion groove top base.

[0006] Further, the specifications of the slotting top base correspond to the slotting mold core, and the specifications of the expansion groove top base correspond to the specifications of the expansion groove mold core, and the height values of the slotting top base, the expansion groove top base and the mold core are all greater than the depth value of the mold cavity.

[0007] Further, the synchronous mechanism includes a transverse groove opened in the base, the inner side surface of the transverse groove is slidably connected with symmetrically arranged transverse top bases, the top ends of the two sides of the transverse top base are symmetrically provided with first matching inclined surfaces, the top of the two ends of the transverse groove is provided with a first vertical groove, the inner side surface of the first vertical groove is slidably connected with a first driving block, the bottom of the first driving block is provided with a first driving inclined surface corresponding to the first matching inclined surface, and the bottom of the two sides of the slotting top base is symmetrically provided with a first jacking inclined surface corresponding to the first matching inclined surface.

[0008] Further, the inside of the base is provided with a longitudinal groove, the inner side surface of the longitudinal groove is slidably connected with symmetrically arranged longitudinal top bases, the top ends of the two sides of the longitudinal top base are symmetrically provided with second matching inclined surfaces, the top of the two ends of the longitudinal groove is provided with a second vertical groove, the inner side surface of the second vertical groove is slidably connected with a second driving block, the bottom of the second driving block is provided with a second driving inclined surface corresponding to the second matching inclined surface, and the bottom of the two sides of the expansion groove top base is symmetrically provided with a second jacking inclined surface corresponding to the second matching inclined surface.

[0009] Further, the top of the first driving block and the second driving block is provided with a pressure bearing block, and a synchronous steel plate is arranged between the two pressure bearing blocks.

[0010] Further, the top of the two pressure bearing blocks is symmetrically provided with a positioning groove on one side close to each other, the distance between the two groups of positioning grooves corresponds to the synchronous steel plate, and the specifications of the positioning grooves correspond to the synchronous steel plate.

[0011] Further, when the synchronous steel plate is placed in the positioning groove, the bottom surface of the synchronous steel plate abuts against the top surface of the mold core.

[0012] Further, the top of the first driving block and the second driving block is provided with a slot, the two sides of the slot are provided with vertically arranged sliding grooves, the pressure bearing block is slidably connected with the inner side surface of the slot, and the two ends of the pressure bearing block are symmetrically provided with short columns, the bottom of the slot is provided with an embedding groove, and the bottom of the pressure bearing block is provided with an embedding block matched with the embedding groove.

[0013] Further, the short column is in sliding connection with the inner side of the sliding groove, and the specification of the short column is matched with the sliding groove, and the depth value of the embedding groove is matched with the sliding stroke value of the short column in the sliding groove.

[0014] Compared with the prior art, the bearing ring forging die provided by the application has the following beneficial effects: 1. The bearing ring forging die can quickly form the bearing ring during the die forging process of the bearing ring, and the stress on the blank is uniform during the forming process, thereby effectively ensuring the high efficiency and high quality of the bearing ring.

[0015] 2. The bearing ring forging die can ensure the stable operation of the forging hammer hole expansion and reaming, and can also retract the pressure block as needed, so that the overall height can be adjusted without interfering with other working processes, and the use flexibility is better. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0017] Figure 1 The overall structure schematic diagram provided by the embodiment of the present application is provided. Figure 2 The bottom die and base structure schematic diagram provided by the embodiment of the present application is provided. Figure 3 The transverse slot internal structure schematic diagram provided by the embodiment of the present application is provided. Figure 4 The longitudinal slot internal structure schematic diagram provided by the embodiment of the present application is provided. Figure 5 The first driving block and pressure block separation state structure schematic diagram provided by the embodiment of the present application is provided.

[0018] Explanation of reference signs: 1, forge body; 101, hammer; 102, base; 2, bottom die; 21, cavity; 22, expansion groove top seat; 23, slotting top seat; 3, transverse slot; 31, transverse top seat; 32, first matching slope; 33, first driving block; 34, first driving slope; 35, first lifting slope; 36, longitudinal slot; 37, longitudinal top seat; 38, second matching slope; 39, second driving block; 310, second driving slope; 311, second lifting slope; 312, pressure block; 313, synchronous steel plate; 4, positioning slot; 5, slotting; 51, sliding slot; 52, short column; 53, embedding groove; 54, embedding block. DETAILED DESCRIPTION

[0019] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the drawings.

[0020] Example 1: Please refer to Figures 1-4 A bearing ring forging die, comprising a bottom die 2 installed on a forging body 1, a hammer 101 provided on the forging body 1 corresponding to the bottom die 2, a base 102 installed below the bottom die 2 on the forging body 1, the bottom die 2 being fixedly connected to the base 102, the bottom die 2 being provided with a cavity 21, the bottom of the cavity 21 being provided with a circular groove, the inner side of the circular groove being slidably connected with an expansion groove top seat 22, the inside of the expansion groove top seat 22 being provided with a vertical slot, the inner side of the vertical slot being slidably connected with a slotting top seat 23, the cavity 21, the expansion groove top seat 22 and the slotting top seat 23 being concentrically arranged, a semi-finished blank being placed in the cavity 21, a mold core being placed on the top of the semi-finished blank, the mold core comprising a slotting mold core and an expansion groove mold core; The base 102 is provided with a synchronous mechanism corresponding to the expansion groove top seat 22 and the slotting top seat 23, the synchronous mechanism being used for synchronizing the movement between the slotting mold core and the slotting top seat 23 and the movement between the expansion groove mold core and the expansion groove top seat 22.

[0021] It should be noted that the specifications of the slotting top seat 23 correspond to the specifications of the slotting mold core, and the specifications of the expansion groove top seat 22 correspond to the specifications of the expansion groove mold core, and the height values of the slotting top seat 23, the expansion groove top seat 22 and the mold core are all greater than the depth value of the cavity 21, so that the slotting and the expansion groove can be more complete.

[0022] The structure of the synchronous mechanism is specifically described as follows: the horizontal groove 3 is arranged in the base 102, the inner side of the horizontal groove 3 is slidably connected with the horizontally arranged horizontal top seat 31, the top ends of the two sides of the horizontal top seat 31 are symmetrically provided with the first matching inclined surface 32, the top of the two ends of the horizontal groove 3 is provided with the first vertical groove, the inner side of the first vertical groove is slidably connected with the first driving block 33, the bottom of the first driving block 33 is provided with the first driving inclined surface 34 corresponding to the first matching inclined surface 32, and the bottom of the two sides of the slotted top seat 23 is symmetrically provided with the first jacking inclined surface 35 corresponding to the first matching inclined surface 32.

[0023] Further, the longitudinal groove 36 is arranged in the base 102, the inner side of the longitudinal groove 36 is slidably connected with the longitudinally arranged longitudinal top seat 37, the top ends of the two sides of the longitudinal top seat 37 are symmetrically provided with the second matching inclined surface 38, the top of the two ends of the longitudinal groove 36 is provided with the second vertical groove, the inner side of the second vertical groove is slidably connected with the second driving block 39, the bottom of the second driving block 39 is provided with the second driving inclined surface 310 corresponding to the second matching inclined surface 38, and the bottom of the two sides of the slotted top seat 22 is symmetrically provided with the second jacking inclined surface 311 corresponding to the second matching inclined surface 38.

[0024] Further, the top of the first driving block 33 and the second driving block 39 is provided with the pressure block 312, the two pressure blocks 312 are provided with the synchronous steel plate 313, the synchronous steel plate 313 is made of high-strength steel material, is not easy to deform, and has a large thickness, so that the synchronous steel plate 313 can synchronously press the two pressure blocks 312 during hammering.

[0025] During the die forging process, the blank is placed in the die cavity 21 and is preliminarily forged by the forging hammer 101 to be formed into a round cake shape, then the slotted die core is placed in the middle part of the blank during the slotted process, then the synchronous steel plate 313 is placed on the corresponding pressure block 312, at this time, the synchronous steel plate 313 is in contact with the top of the slotted die core, then the forging hammer 101 continues to hammer, and the hammering is on the synchronous steel plate 313, at this time, under the action of the synchronous steel plate 313, the slotted die core and the pressure block 312 are synchronously subjected to the hammering force, the slotted die core is pressed on the top of the blank and penetrates into the blank under the action of the hammering force, and the pressure block 312 is pressed on the first driving block 33, so that the first driving block 33 pushes the horizontal top seat 31 to move, the slotted top seat 23 is pushed to move upward and penetrates into the blank, so that the blank can be synchronously slotted upward and downward during the slotted process, the blank is subjected to a more uniform force upward and downward, and the high-temperature metal flows more uniformly during the slotted process; When the slot is expanded, the expansion core is placed in the slot hole, and the bottom expansion top seat 22 is expanded synchronously with the expansion core through the same steps as described above, so that the die forging process of the bearing ring is more convenient and efficient.

[0026] Embodiment 2: Please refer to Figure 5 The bottom surface of the synchronous steel plate 313 abuts against the top surface of the mold core when the synchronous steel plate 313 is placed in the positioning groove 4, so that the first driving block 33 and the second driving block 39 can drive the slotting top seat 23 or the expansion top seat 22 to move the same distance as the mold core when the synchronous steel plate 313 is hammered, thereby effectively ensuring the stability of the slotting or expansion work.

[0027] It should be noted that when the synchronous steel plate 313 is placed in the positioning groove 4, the bottom surface of the synchronous steel plate 313 abuts against the top surface of the mold core, so that the first driving block 33 and the second driving block 39 can drive the slotting top seat 23 or the expansion top seat 22 to move the same distance as the mold core when the synchronous steel plate 313 is hammered, thereby effectively ensuring the stability of the slotting or expansion work.

[0028] Embodiment 3: Please refer to Figure 5 The top of the first driving block 33 and the second driving block 39 is provided with a slot 5, and the two sides of the slot 5 are provided with a vertically arranged sliding groove 51. The pressure block 312 is slidably connected to the inner side of the slot 5, and the two ends of the pressure block 312 are symmetrically provided with a short column 52. The bottom of the slot 5 is provided with an embedding groove 53, and the bottom of the pressure block 312 is provided with an embedding block 54 matched with the embedding groove 53.

[0029] It should be noted that the short column 52 is slidably connected to the inner side of the sliding groove 51, and the specification of the short column 52 is matched with the sliding groove 51. The depth value of the embedding groove 53 is matched with the sliding stroke value of the short column 52 in the sliding groove 51, so that when the short column 52 moves to the top end position of the sliding groove 51, the embedding block 54 completely exits from the embedding groove 53, and the hard pressure block 312 will not rotate.

[0030] In the non-use state, the pressure block 312 is pulled upward, so that the short column 52 moves upward along the inside of the sliding groove 51 to the top end of the sliding groove 51, and the embedding block 54 moves synchronously to exit from the embedding groove 53. Then, the pressure block 312 is rotated outwardly to reduce its overall height, so that it will not interfere with other work due to its high overall height.

[0031] The foregoing merely illustrates some exemplary embodiments of the application, and it will be appreciated that those skilled in the art will be able to devise various modifications without departing from the spirit and scope of the application. The appended drawings and description are illustrative only, and are not intended to be limiting.

Claims

1. A forging die for bearing rings, comprising a bottom die (2) mounted on a forging machine body (1), wherein a forging hammer (101) corresponding to the bottom die (2) is provided on the forging machine body (1), and a base (102) located below the bottom die (2) is mounted on the forging machine body (1), characterized in that, The bottom mold (2) has a mold cavity (21), the bottom of the mold cavity (21) has a circular groove, the inner side of the circular groove is slidably connected to an expansion groove top seat (22), the inside of the expansion groove top seat (22) has a vertical groove, the inner side of the vertical groove is slidably connected to a slotting top seat (23), the mold cavity (21), the expansion groove top seat (22) and the slotting top seat (23) are all concentrically arranged, the mold cavity (21) contains a semi-finished blank, the top of the semi-finished blank contains a mold core, the mold core includes a slotting mold core and an expansion groove mold core; The base (102) is provided with a synchronization mechanism corresponding to the expansion top seat (22) and the slotting top seat (23). The synchronization mechanism is used to synchronize the movement between the slotting mold core and the slotting top seat (23) and the movement between the expansion mold core and the expansion top seat (22).

2. The bearing ring forging die according to claim 1, characterized in that, The specifications of the slotted top seat (23) correspond to those of the slotted mold core, and the specifications of the expanded slot top seat (22) correspond to those of the expanded slot mold core. The height values ​​of the slotted top seat (23), the expanded slot top seat (22), and the mold core are all greater than the depth value of the mold cavity (21).

3. The bearing ring forging die according to claim 2, characterized in that, The synchronization mechanism includes a transverse groove (3) inside the base (102), a transverse top seat (31) symmetrically arranged slidably connected to the inner side of the transverse groove (3), a symmetrical first mating inclined surface (32) on the top of both sides of the transverse top seat (31), a first vertical groove on the top of both ends of the transverse groove (3), a first driving block (33) slidably connected to the inner side of the first vertical groove, a first driving inclined surface (34) corresponding to the first mating inclined surface (32) at the bottom of the first driving block (33), and a first lifting inclined surface (35) corresponding to the first mating inclined surface (32) symmetrically opened on both sides of the bottom of the slotted top seat (23).

4. The bearing ring forging die according to claim 3, characterized in that, The base (102) has a longitudinal groove (36) inside. The inner side of the longitudinal groove (36) is slidably connected to a symmetrically arranged longitudinal top seat (37). The top of both sides of the longitudinal top seat (37) is provided with a symmetrical second mating inclined surface (38). The top of both ends of the longitudinal groove (36) is provided with a second vertical groove. The inner side of the second vertical groove is slidably connected to a second driving block (39). The bottom of the second driving block (39) is provided with a second driving inclined surface (310) corresponding to the second mating inclined surface (38). The bottom of the expansion groove top seat (22) is symmetrically provided with a second lifting inclined surface (311) corresponding to the second mating inclined surface (38).

5. A bearing ring forging die according to claim 4, characterized in that, The top of the first drive block (33) and the second drive block (39) are both equipped with pressure blocks (312), and a synchronous steel plate (313) is provided between the two pressure blocks (312).

6. A bearing ring forging die according to claim 5, characterized in that, The tops of the two pressure blocks (312) are provided with positioning grooves (4) on one side close to each other. The distance between the two sets of positioning grooves (4) corresponds to the synchronous steel plate (313), and the specifications of the positioning grooves (4) correspond to the synchronous steel plate (313).

7. A bearing ring forging die according to claim 6, characterized in that, When the synchronous steel plate (313) is placed in the positioning groove (4), the bottom surface of the synchronous steel plate (313) abuts against the top surface of the mold core.

8. A bearing ring forging die according to claim 7, characterized in that, The top of the first driving block (33) and the second driving block (39) are provided with slots (5), and the two sides of the slots (5) are provided with vertically arranged sliding grooves (51). The pressure block (312) is slidably connected to the inner side of the slot (5), and short columns (52) are symmetrically installed at both ends of the pressure block (312). The bottom of the slot (5) is provided with a groove (53), and the bottom of the pressure block (312) is provided with an insert (54) that matches the groove (53).

9. A bearing ring forging die according to claim 8, characterized in that, The short column (52) is slidably connected to the inner side of the sliding groove (51), and the specifications of the short column (52) are adapted to the sliding groove (51). The depth value of the groove (53) is adapted to the sliding stroke value of the short column (52) in the sliding groove (51).

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