A reaming die for forging a bearing ring

Abstract

This utility model provides a reaming die for forging bearing rings, relating to the field of bearing ring reaming dies. It includes: a base plate, a worktable fixedly connected to the rear side of the upper surface of the base plate, a support frame fixedly connected to the rear side of the upper surface of the worktable, and a hydraulic cylinder mounted on the top of the support frame; a shifting mechanism is provided on the upper front side of the worktable. The shifting mechanism drives four reaming lower dies to perform intermittent horizontal 90-degree rotation. When the reamed bearing ring rotates to the front, the operator can remove it and replace it with the bearing ring to be reamed. The reaming operation at the rear station and the loading / unloading operation at the front can be performed simultaneously, significantly improving reaming efficiency and avoiding frequent movement of operators, effectively reducing labor costs. This solves the problem of increased labor costs caused by the frequent back-and-forth movement of operators between two reaming lower dies during material handling in existing patented bearing ring forging reaming dies.

Description

Technical Field

[0001] This utility model relates to the field of bearing ring reaming mold technology, and in particular to a reaming mold for forging bearing rings. Background Technology

[0002] As a core component of bearings, the forging quality of bearing rings is of paramount importance. The reaming process is a crucial step in bearing ring forging, aiming to machine the blank into a ring-shaped part with specific inner and outer diameters. The performance of the reaming die directly determines the efficiency of the reaming process and the product quality.

[0003] Existing patent application number CN202323102737.8 discloses a bearing ring forging reaming die. Although the reaming die improves work efficiency to a certain extent through its structural design, during the material handling process, the workers need to frequently walk back and forth between the two reaming lower dies, which increases labor consumption. Furthermore, the support frame used to support the hydraulic cylinder and the reaming upper die does not receive effective reinforcement after being repositioned, resulting in poor stability of the reaming die during use and affecting the reaming quality of the bearing ring. Utility Model Content

[0004] This utility model relates to a reaming die for forging bearing rings, which solves the problem of an existing bearing ring forging reaming die disclosed in the patent technology. Although the structure design improves the work efficiency to a certain extent, the workers need to walk back and forth between the two reaming dies frequently when picking up and putting down the material, which increases the labor consumption. In addition, the support frame does not get effective reinforcement after being repositioned, which affects the reaming quality.

[0005] In a first aspect, this utility model provides a reaming die for forging bearing rings, specifically comprising: a base plate, a worktable fixedly connected to the rear side of the upper surface of the base plate, a support frame fixedly connected to the rear side of the upper surface of the worktable, and a hydraulic cylinder mounted on the top of the support frame; a shifting mechanism provided on the upper front side of the worktable; the shifting mechanism includes a circular rotating disk and a stepper motor, a vertical rotating shaft fixedly connected to the middle of the lower end surface of the circular rotating disk, and the vertical rotating shaft rotatably connected to the middle of the front end surface of the worktable, and four reaming lower dies mounted in a circular array on the upper end surface of the circular rotating disk; a grooved wheel fixedly connected to the lower end of the vertical rotating shaft, the stepper motor mounted on the front end surface of the worktable, and a rotating circular plate fixedly connected to the upper end of the rotating shaft of the stepper motor, a notched circular disk provided in the middle of the upper surface of the rotating circular plate, and a toggle post fixedly connected to the edge of the upper surface of the rotating circular plate; a lifting plate fixedly connected to the lower end of the telescopic rod of the hydraulic cylinder, and an reaming upper die mounted on the bottom of the lifting plate.

[0006] Furthermore, the stepper motor shaft rotates one revolution at a time. When the stepper motor shaft rotates one revolution, the rotating circular plate rotates one revolution with the actuating column, and the actuating column will slide in connection with the radial groove on the grooved wheel, and the actuating column will drive the grooved wheel to rotate one-quarter revolution.

[0007] Furthermore, two vertical support plates are fixedly connected to the front side of the upper end of the base plate in a symmetrical manner, and the upper end of the two vertical support plates is provided with a clamping and reinforcing mechanism.

[0008] Furthermore, a collection box is placed inside the workbench, and a limit door is rotatably connected to the left end of the workbench at the pick-up / drop-off port via a door hinge. A limit plate is provided on the bottom end of the workbench, which is used to limit the rear side of the collection box. A feed through hole communicating with the interior is opened on the front side of the top of the workbench. A high-manganese steel pad is fixedly installed on the front side of the top of the workbench, and the upper end of the high-manganese steel pad is at the same level as the bottom end of the circular rotating disk. A circular opening is opened on the upper end of the high-manganese steel pad. A control box is installed on the left side of the workbench.

[0009] Furthermore, a vertical guide rod is fixedly connected to each of the four corners of the upper surface of the lifting plate, and the four vertical guide rods are slidably connected to the top of the support frame.

[0010] Furthermore, the outer circumference of the circular rotating disk is fixedly connected with four rectangular blocks in a ring array, and the bottom end face of the circular rotating disk is provided with four feeding holes in a ring array; the bottom end face of each of the enlarged hole lower molds is provided with a circular feeding hole that communicates with its interior, and the circular through holes on the four enlarged hole lower molds respectively match the four feeding holes.

[0011] Furthermore, the clamping and reinforcing mechanism includes two clamping hydraulic cylinders, which are respectively fixedly installed on the upper back of the two vertical support plates. The telescopic rods of the two clamping hydraulic cylinders pass through the two vertical support plates, and a clamping plate is installed at the opposite end of each telescopic rod of the two clamping hydraulic cylinders. A sliding guide rod that passes through the vertical support plate is fixedly connected to the back of each clamping plate.

[0012] Furthermore, when the clamping and reinforcing mechanism is in the clamping and fixing state, the two clamping plates are respectively clamped and fixed on the back sides of the left and right rectangular blocks.

[0013] This utility model provides a reaming die for forging bearing rings, which has the following advantages:

[0014] 1. This utility model uses a switching mechanism to drive four reaming lower molds to perform intermittent horizontal rotation at 90 degrees, realizing rapid switching between four workstations. When the reamed bearing ring rotates to the front, the operator can remove it and replace it with the bearing ring to be reamed. The reaming operation at the rear workstation and the loading and unloading operation at the front workstation can be carried out simultaneously, which not only greatly improves the reaming efficiency, but also avoids the operator from walking around frequently, effectively reducing labor consumption.

[0015] 2. By setting up a clamping and reinforcing mechanism, this utility model can move two clamping plates in opposite directions after the circular rotating disk completes the repositioning work. This allows the two clamping plates to clamp and fix the two rectangular blocks on the opposite back sides, effectively improving the stability of the reaming mold during use and thus improving the reaming quality of the bearing ring. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the accompanying drawings of this utility model will be briefly described below.

[0017] In the attached diagram:

[0018] Figure 1 A structural schematic diagram of the overall structure of this application is shown;

[0019] Figure 2 A structural schematic diagram of this application from a rear view is shown;

[0020] Figure 3 This diagram illustrates the structure of this application in its disassembled state.

[0021] Figure 4 This invention relates to a schematic diagram showing a partial cross-sectional view of the workbench and high-manganese steel pad.

[0022] Figure 5 A schematic diagram of the transposition mechanism of this application is shown;

[0023] Figure 6 A schematic diagram of the circular rotating disk, vertical rotating shaft, and grooved wheel of this application is shown;

[0024] Figure 7 A structural schematic diagram of the vertical support plate and clamping reinforcement mechanism of this application is shown.

[0025] List of reference numerals

[0026] 1. Base plate; 101. Vertical support plate;

[0027] 2. Workbench; 201. Support frame; 202. Collection box; 203. Limiting gate; 204. Feed through hole; 205. High manganese steel pad; 206. Limiting plate;

[0028] 3. Hydraulic cylinder; 301. Lifting plate;

[0029] 4. Positioning mechanism; 401. Circular rotating disk; 402. Vertical rotating shaft; 403. Stepper motor; 404. Rotating circular plate; 405. Notched circular disk; 406. Grooved wheel; 407. Actuating column; 408. Rectangular block; 409. Discharge hole;

[0030] 5. Expanding the hole in the lower mold;

[0031] 6. Clamping and reinforcement mechanism; 601. Clamping hydraulic cylinder; 602. Clamping plate; 603. Sliding guide rod;

[0032] 7. Expanding the hole using the upper mold;

[0033] 8. Control box. Detailed Implementation

[0034] 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, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0035] Example 1: Please refer to Figures 1 to 7 :

[0036] This utility model proposes a reaming die for forging bearing rings, comprising: a base plate 1, a worktable 2 fixedly connected to the rear side of the upper end face of the base plate 1, a support frame 201 fixedly connected to the rear side of the upper end face of the worktable 2, and a hydraulic cylinder 3 mounted on the top of the support frame 201; a shifting mechanism 4 is provided on the upper front side of the worktable 2; the shifting mechanism 4 includes a circular rotating disk 401 and a stepper motor 403, a vertical rotating shaft 402 fixedly connected to the middle of the lower end face of the circular rotating disk 401, and the vertical rotating shaft 402 is rotatably connected to the middle of the front end face of the worktable 2, and four reaming lower dies 5 are installed in a ring array on the upper end face of the circular rotating disk 401; a grooved wheel 406 is fixedly connected to the lower end of the vertical rotating shaft 402, and the stepper motor 403 is mounted on the front end face of the worktable 2, with the upper end of the rotating shaft of the stepper motor 403 fixedly connected to... A rotating circular plate 404 is connected, with a notched disc 405 in the middle of the upper surface of the rotating circular plate 404, and a toggle column 407 is fixedly connected to the edge of the upper surface of the rotating circular plate 404; a lifting plate 301 is fixedly connected to the lower end of the telescopic rod of the hydraulic cylinder 3, and an upper reaming mold 7 is installed at the bottom of the lifting plate 301, and a lower reaming mold 5 on the rear side is on the same axis as the upper reaming mold 7; the four lower reaming molds 5 are driven to perform intermittent horizontal rotation at 90 degrees by the switching mechanism 4, realizing rapid switching of four workstations. When the bearing ring after reaming rotates to the front, the operator can remove it and replace it with the bearing ring to be reamed. The reaming operation at the rear workstation and the loading and unloading operation at the front workstation can be carried out simultaneously, thereby improving the reaming efficiency and reducing the need for the operator to move around frequently, effectively reducing labor consumption.

[0037] The stepper motor 403 shaft rotates one revolution at a time. When the stepper motor 403 shaft rotates one revolution, the rotating circular plate 404 rotates one revolution with the actuating column 407. The actuating column 407 will slide in connection with the radial groove on the grooved wheel 406, and the actuating column 407 will drive the grooved wheel 406 to rotate one-quarter revolution, that is, 90 degrees.

[0038] Two vertical support plates 101 are fixedly connected to the front side of the upper end of the base plate 1 in a symmetrical manner, and the upper end of the two vertical support plates 101 is provided with a clamping and reinforcing mechanism 6 for reinforcing the circular rotating disk 401.

[0039] A collection box 202 is placed inside the workbench 2, and the left end face of the workbench 2 is connected to a limit gate 203 via a hinge at the pick-up / drop-off port. When the limit gate 203 is closed, it can limit the left side of the collection box 202. A limit plate 206 is provided on the bottom end face of the workbench 2, which is used to limit the rear side of the collection box 202. A feed through hole 204 communicating with the interior is opened on the front side of the top of the workbench 2. A high-manganese steel pad 205 is fixedly installed, and the upper end face of the high-manganese steel pad 205 is at the same level as the bottom end face of the circular rotating disk 401. High-manganese steel is a type of steel containing a high proportion of manganese element, which has significant characteristics such as high strength, good toughness, wear resistance, and impact resistance. Therefore, the high-manganese steel pad 205 has good wear resistance. A circular opening is provided on the upper end face of the high-manganese steel pad 205. A control box 8 is installed on the left side of the workbench 2, and the stepper motor 403 is electrically connected to the control box 8.

[0040] A vertical guide rod is fixedly connected to each of the four corners of the upper surface of the lifting plate 301, and the four vertical guide rods are slidably connected to the top of the support frame 201, so that the lifting plate 301 can be effectively guided when moving up and down, thereby improving the accuracy of the enlarging die 7 when enlarging the hole.

[0041] The outer circumference of the circular rotating disk 401 is fixedly connected with four rectangular blocks 408 in a ring array, and the bottom surface of the circular rotating disk 401 is provided with four discharge holes 409 in a ring array; the bottom surface of each enlarged hole lower mold 5 is provided with a circular discharge hole that communicates with its interior, and the circular through holes on the four enlarged hole lower molds 5 respectively match the four discharge holes 409, which facilitates the discharge of debris.

[0042] Example 2, based on Example 1, such as Figure 1 , Figure 5 and Figure 7As shown, the clamping and reinforcing mechanism 6 includes two clamping hydraulic cylinders 601, which are respectively fixedly installed on the upper back sides of two vertical support plates 101. The telescopic rods of the two clamping hydraulic cylinders 601 pass through the two vertical support plates 101, and a clamping plate 602 is installed at the opposite end of each telescopic rod. A sliding guide rod 603 passing through the vertical support plate 101 is fixedly connected to the back sides of each clamping plate 602. The clamping and reinforcing mechanism 6... The configuration is such that after the circular rotating disk 401 completes the repositioning work, two clamping hydraulic cylinders 601 move the two clamping plates 602 in opposite directions, so that the two clamping plates 602 are respectively clamped and fixed on the opposite sides of the left and right rectangular blocks 408, thereby ensuring the stability of the lower mold 5 during use. During the rotation and repositioning process of the circular rotating disk 401, the two clamping hydraulic cylinders 601 will move the two clamping plates 602 in opposite directions to avoid the two clamping plates 602 interfering with the circular rotating disk 401 during the rotation process.

[0043] When the clamping and reinforcing mechanism 6 is in the clamping and fixing state, the two clamping plates 602 are respectively clamped and fixed on the back of the left and right rectangular blocks 408 to ensure the stability of the lower die 5 during use and avoid affecting the quality of the bearing ring hole expansion.

[0044] The working principle of this embodiment is as follows: In use, the bearing race is first placed inside the four lower reaming molds 5. Then, the extension rod of the hydraulic cylinder 3 extends downwards, causing the lifting plate 301 and the upper reaming mold 7 to move downwards in a straight line. This, in conjunction with the lower reaming mold 5 on the rear side, expands the bearing race on the rear side. After expansion, the extension rod of the hydraulic cylinder 3 moves the lifting plate 301 and the upper reaming mold 7 upwards to reset. Next, the control box 8 controls the stepper motor 403 to rotate clockwise one revolution, thereby causing the rotating disc 404 and the notched disc 405 to rotate clockwise one revolution. The rotating disc 404 then causes the actuating column 407 to rotate clockwise one revolution. The actuating column 407 then drives the grooved wheel 406 to rotate counterclockwise one-quarter revolution. At this time, through vertical rotation... Shaft 402 rotates the circular rotating disk 401 counterclockwise by a quarter turn, or 90 degrees, thereby switching the positions of the four expansion molds 5. Then, the extension rod of the hydraulic cylinder 3 continues to extend downward, moving the lifting plate 301 and the expansion mold 7 downward in a straight line, so that the bearing ring on the front and rear sides is expanded. This cycle greatly improves the expansion efficiency of the bearing ring. When the expanded bearing ring rotates to the front, the worker can remove it and replace it with the bearing ring to be expanded (the bearing ring to be expanded can be placed on the support platform, which is located on the ground to the right of the circular rotating disk 401 for easy material handling). In this way, the worker does not need to walk back and forth frequently, thus effectively reducing labor costs.

[0045] The debris generated during the hole enlargement process falls into the collection box 202 through the circular discharge hole on the lower enlargement mold 5, the circular opening on the high manganese steel pad 205, and the feed through hole 204, and is collected.

[0046] The following points should be noted in this article:

[0047] 1. The accompanying drawings of this utility model only relate to the structures involved in this utility model; other structures can be referred to conventional designs.

[0048] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0049] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A reaming die for forging bearing rings, comprising: A base plate (1) is fixedly connected to a workbench (2) on the rear side of its upper end face. A support frame (201) is fixedly connected to the rear side of the upper end face of the workbench (2). A hydraulic cylinder (3) is installed on the top of the support frame (201). The workbench (2) is characterized in that a shifting mechanism (4) is provided on the upper front side of the workbench (2). The shifting mechanism (4) includes a circular rotating disk (401) and a stepper motor (403). A vertical rotating shaft (402) is fixedly connected to the middle of the lower end face of the circular rotating disk (401), and the vertical rotating shaft (402) is rotatably connected to the middle of the front end face of the workbench (2). The upper end of the circular rotating disk (401) is... Four enlarged hole lower molds (5) are installed in a ring array on the surface; a grooved wheel (406) is fixedly connected to the lower end of the vertical rotating shaft (402); the stepper motor (403) is installed on the front end face of the workbench (2); a rotating circular plate (404) is fixedly connected to the upper end of the rotating shaft of the stepper motor (403); a notched disc (405) is provided in the middle of the upper end face of the rotating circular plate (404); and a toggle column (407) is fixedly connected to the edge of the upper end face of the rotating circular plate (404); a lifting plate (301) is fixedly connected to the lower end of the telescopic rod of the hydraulic cylinder (3); and an enlarged hole upper mold (7) is installed at the bottom of the lifting plate (301).

2. The expanding die for forging bearing rings according to claim 1, characterized in that: The stepper motor (403) shaft rotates one revolution at a time. When the stepper motor (403) shaft rotates one revolution, the rotating disc (404) rotates one revolution with the actuating column (407), and the actuating column (407) will slide in connection with the radial groove on the grooved wheel (406), and the actuating column (407) will drive the grooved wheel (406) to rotate one-quarter revolution.

3. The reaming die for forging bearing rings according to claim 1, characterized in that: The upper front side of the base plate (1) is fixedly connected to two vertical support plates (101) in a symmetrical manner, and the upper ends of the two vertical support plates (101) are provided with clamping and reinforcing mechanisms (6).

4. The reaming die for forging bearing rings according to claim 1, characterized in that: The workbench (2) contains a collection box (202), and the left end face of the workbench (2) is connected to a limit gate (203) via a door hinge at the pick-up and drop-off port. The bottom end face of the workbench (2) is provided with a limit plate (206). The front side of the top end of the workbench (2) is provided with a feed through hole (204) that communicates with its interior. A high manganese steel pad (205) is fixedly installed on the front side of the top of the workbench (2), and the upper end face of the high manganese steel pad (205) is at the same level as the bottom end face of the circular rotating disk (401). A circular opening is provided on the upper end face of the high manganese steel pad (205). A control box (8) is installed on the left side of the workbench (2).

5. The expanding die for forging bearing rings according to claim 1, characterized in that: A vertical guide rod is fixedly connected to each of the four corners of the upper surface of the lifting plate (301), and the four vertical guide rods are slidably connected to the top of the support frame (201).

6. The reaming die for forging bearing rings according to claim 3, characterized in that: The outer circumferential surface of the circular rotating disk (401) is fixedly connected with four rectangular blocks (408) in a ring array, and the bottom surface of the circular rotating disk (401) is provided with four unloading circular holes (409) in a ring array; the bottom surface of each of the enlarged hole lower molds (5) is provided with a circular unloading hole that communicates with its interior, and the circular through holes on the four enlarged hole lower molds (5) respectively match the four unloading circular holes (409).

7. The reaming die for forging bearing rings according to claim 6, characterized in that: The clamping and reinforcing mechanism (6) includes two clamping hydraulic cylinders (601). The two clamping hydraulic cylinders (601) are fixedly installed on the upper side of the opposite side of the two vertical support plates (101). The telescopic rods of the two clamping hydraulic cylinders (601) pass through the two vertical support plates (101). A clamping plate (602) is installed on the opposite end of the telescopic rods of the two clamping hydraulic cylinders (601). A sliding guide rod (603) that passes through the vertical support plate (101) is fixedly connected to the opposite side of the two clamping plates (602).

8. The reaming die for forging bearing rings according to claim 7, characterized in that: When the clamping and reinforcing mechanism (6) is in the clamping and fixing state, the two clamping plates (602) are respectively clamped and fixed on the back of the left and right rectangular blocks (408).

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