Forging die for bearing

Abstract

The utility model discloses a kind of forging and pressing moulds for bearing, including die holder, die body is slidably adapted in die holder, elastic member is connected on die body, the inner wall of die holder is constructed with several slide grooves in circumferential direction, the sidewall of die body is set with drive rod that pops into into slide groove, the bottom of slide groove is constructed with recessed area, and guiding channel is set between adjacent slide grooves Communication. When forging and pressing, punch head drives die body to extrude elastic member to move downward, during drive rod will enter the recessed area in bottom along slide groove;After forging and pressing are completed, punch head is lifted, and elastic member has the tendency of promoting die body to rise. Under the guidance of guiding channel, die body rotates, until drive rod enters and rises along adjacent slide groove, so that die body completes upward reset. Compared with prior art, the die body of the utility model realizes rotation by the cooperation of drive rod and guiding channel, with higher use reliability.

Description

Technical Field

[0001] This utility model relates to the field of bearing manufacturing technology, and in particular, to a forging die for bearings. Background Technology

[0002] When forging bearings, the first step is to select a suitable metal material for bearing manufacturing and cut it into a suitable shape and size according to the bearing design requirements. Then, the material is heated and subjected to heavy pressure several times under forging equipment to form a metal cylinder with a certain shape. The metal cylinder is then further processed to form the bearing.

[0003] Currently, Chinese patent CN220782125U discloses a forging die for bearings, including a stamping head and a lower die arranged opposite each other. The lower die body is slidably fitted within a lower die holder, and a push plate is spring-loaded within the lower die holder. The push plate is specifically adapted to be inclined, and the bottom of the lower die has an inclined surface that matches the push plate.

[0004] During forging, the punch head presses the bearing into the lower die, at which point the lower die is pushed down, and the elastic component connected to the push plate is compressed accordingly. When forging is completed, the punch head is lifted, and the elastic component connected to the push plate pushes the lower die upward. Due to the inclined arrangement of the push plate, the lower die will be subjected to an inclined thrust and rotate, thereby avoiding fatigue caused by long-term fixed-point contact between the lower die and the punch head.

[0005] However, the method of using the push plate and the inclined plane to drive the lower mold to rotate is unreliable. For example, slippage may occur, causing the lower mold to rotate unexpectedly. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a forging die for bearings.

[0007] The objective of this utility model is achieved through the following technical solution: A forging die for bearings includes a die base, a die body slidably fitted inside the die base, an elastic element connected to the die body, a plurality of circumferential grooves formed on the inner wall of the die base, a drive rod extending into the grooves being elastically provided on the side wall of the die body, a recessed area being formed at the bottom of the grooves, and a guide channel being provided between adjacent grooves, the guide channel including an inlet end and an outlet end, wherein the inlet end is connected to the recessed area, and the outlet end is located above the corresponding recessed area.

[0008] Preferably, the groove depth of the guide channel gradually decreases from the inlet end to the outlet end.

[0009] Preferably, the end of the drive rod is provided with a guide wheel, which is adapted to fit within the groove.

[0010] Preferably, the guiding surface of the guiding channel is configured as an inclined surface or an arc surface.

[0011] Preferably, the upper and lower seats of the mold base are detachably connected, and the recessed area and the guide channel are both constructed on the inner wall of the lower seat.

[0012] Preferably, both the upper seat and the lower seat are provided with flanges at their ends, and the two flanges are fixed together by fasteners.

[0013] Preferably, the fastener includes a fastening bolt.

[0014] Preferably, at least one of the flanges is provided with an adjustment groove, the adjustment groove extending radially, and the fastener is adapted to fit within the adjustment groove.

[0015] The beneficial effects of this invention are as follows: During forging, the pressing head presses down, causing the die body to compress the elastic element and move downwards. During this process, the drive rod enters the recessed area at the bottom along the slide groove. After forging is completed, the pressing head lifts up, while the elastic element tends to push the die body upwards. Guided by the guide channel, the die body rotates until the drive rod enters and rises along the adjacent slide groove, allowing the die body to return to its upward position. Compared with the prior art, the die body of this invention achieves rotation through the cooperation of the drive rod and the guide channel, resulting in higher reliability in use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This is a schematic diagram of the slide (shown as a projected view of the inner wall plane of the mold base).

[0017] Reference numerals in the attached drawings: 1. Mold base; 2. Mold body; 3. Elastic element; 4. Slide groove; 5. Drive rod; 6. Recessed area; 7. Guide channel; 8. Inlet end; 9. Outlet end; 10. Guide wheel; 11. Upper seat; 12. Lower seat; 13. Flange; 14. Fastener; 15. Adjustment groove. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1 , Figure 2As shown, a forging die for bearings includes a die base 1. A die body 2 is vertically slidably fitted inside the die base 1. The specific structure of the die body 2 can be referenced from the structure of die body 2 used for forging bearings in the prior art, for example, the lower die disclosed in Chinese Patent No. CN220782125U. Unlike the prior art, an elastic element 3 connected to the die body 2 may be provided inside the die base 1. When the stamping head presses down on the die body 2, the elastic element 3 is compressed; when the stamping head is lifted upward, the elastic element 3 pushes the die body 2 back out vertically.

[0020] The inner wall of the mold base 1 is provided with several circumferential grooves 4, each groove 4 extending substantially vertically. A drive rod 5 is spring-loaded onto the side wall of the mold body 2 via an elastic mechanism such as a spring, and the drive rod 5 is adapted to extend into the corresponding groove 4. It can be understood that as the mold body 2 rises and falls, the drive rod 5 will slide accordingly within the groove 4.

[0021] The bottom of the slide groove 4 has a radially deeper recessed region 6, and a guide channel 7 is also provided between adjacent slide grooves 4. The guide channel 7 specifically includes an inlet end 8 and an outlet end 9, wherein the inlet end 8 is adapted to communicate with the recessed region 6, and the outlet end 9 communicates with the slide groove 4 located above the recessed region 6. In a typical example: With the die 2 in its initial position, as the stamping head presses down, the drive rod 5 moves downward along the slide 4 until it engages in the recessed area 6, completing the downward stroke of one forging action. As the stamping head rises, the elastic element 3 tends to push the die 2 upward. Guided by the guide surface of the guide channel 7, the die 2 rotates until the drive rod 5 enters and rises along the adjacent slide 4, causing the die 2 to return to its upward position, completing the upward stroke of one forging action.

[0022] In a preferred embodiment, the guiding surface of the guide channel 7 can be configured as a slope or arc extending from the inlet end 8 to the outlet end 9, thereby providing smoother sliding guidance for the drive rod 5. For example, the groove depth of the guide channel 7 can also be preferably adapted to gradually decrease from the inlet end 8 to the outlet end 9, which also facilitates the gradual retraction of the drive rod 5 and its smooth engagement into the rear end groove 4.

[0023] For example, a guide wheel 10 can be provided at the end of the drive rod 5, and the smoothness of the sliding of the drive rod 5 can be further improved by the guide wheel 10 abutting against the guide surface of the guide channel 7.

[0024] In some embodiments, the mold base 1 is adapted to include an upper base 11 and a lower base 12, which are separate upper and lower parts, and the upper base 11 and the lower base 12 are detachably connected. The recessed area 6 and the guide channel 7 are specifically adapted to the inner wall of the lower base 12. For example, when the guide surface of the guide channel 7 wears down, only the lower base 12 needs to be replaced. The upper base 11, because the groove 4 constructed thereon is basically straight, is less prone to wear, and its maintenance and replacement frequency is much lower than that of the lower base 12. This makes the maintenance of the mold base 1 modular, eliminating the need to replace the entire mold base 1.

[0025] In a possible example, the bottom end of the upper seat 11 and the top end of the lower seat 12 are both provided with flanges 13, which are abutted together and fixed by fasteners 14. For example, at least one flange 13 is also provided with an adjustment groove 15 extending radially, and the fastener 14 includes a fastening bolt adapted to fit within the adjustment groove 15. During installation, the upper seat 11 and the lower seat 12 can be assembled, with the fastening bolt passing through the adjustment groove 15. The coaxiality of the upper seat 11 and the lower seat 12 can then be manually adjusted to allow the sliding grooves 4 constructed on the upper seat 11 and the lower seat 12 to assemble more precisely. Finally, a fastening nut is screwed onto the fastening bolt to fix the upper and lower seats 12.

[0026] The above description is merely a preferred embodiment of this utility model. It should be understood that this utility model is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A forging die for bearings, comprising a die seat (1) in which a die body (2) is slidingly fitted, characterised in that: The mold body (2) is connected to an elastic element (3). The inner wall of the mold base (1) is constructed with several grooves (4) along the circumferential direction. The side wall of the mold body (2) is provided with a drive rod (5) that extends into the groove (4). The bottom of the groove (4) is constructed with a recessed area (6). A guide channel (7) is provided between adjacent grooves (4). The guide channel (7) includes an inlet end (8) and an outlet end (9). The inlet end (8) is connected to the recessed area (6), and the outlet end (9) is located above the corresponding recessed area (6).

2. The forging die for bearings according to claim 1, characterized in that: The groove depth of the guide channel (7) gradually decreases from the inlet end (8) to the outlet end (9).

3. The forging die for bearings according to claim 1, characterized in that: The end of the drive rod (5) is provided with a guide wheel (10), which is adapted to the groove (4).

4. The forging die for bearings according to claim 1, characterized in that: The guiding surface of the guiding channel (7) is configured as an inclined surface or an arc surface.

5. The swaging die for bearings according to any one of claims 1 to 4, characterized in that: The mold base (1) is detachably connected to the upper base (11) and the lower base (12). The recessed area (6) and the guide channel (7) are both constructed on the inner wall of the lower base (12).

6. The forging die for bearings according to claim 5, characterized in that: Both the upper seat (11) and the lower seat (12) are provided with flanges (13) at their ends, and the two flanges (13) are fixed together by fasteners (14).

7. The forging die for bearings according to claim 6, characterized in that: The fastener (14) includes a fastening bolt.

8. The forging die for bearings according to claim 6, characterized in that: At least one of the flanges (13) is provided with an adjustment groove (15) that extends radially, and the fastener (14) is adapted to fit within the adjustment groove (15).

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